摘要:
Aromatic-aliphatic ketones of the formulae I, II, III or IV ##STR1## wherein n is 1 or 2, Ar is an aryl radical, R.sup.1 and R.sup.2 are monovalent aliphatic, cycloaliphatic or araliphatic radicals, R.sup.3 is a direct bond or a divalent organic radical, X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH.sub.2 and Z is O, S, SO.sub.2, CH.sub.2 or C(CH.sub.3).sub.2, are suitable sensitizers for the photopolymerization of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those for obtaining the known compounds of this type.
摘要:
Aromatic-aliphatic ketones of the formulae I, II, III or IV ##STR1## wherein n is 1 or 2, Ar is an aryl radical, R.sup.1 and R.sup.2 are monovalent aliphatic, cycloaliphatic or araliphatic radicals, R.sup.3 is a direct bond or a divalent organic radical, X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH.sub.2 and Z is O, S, SO.sub.2, CH.sub.2 or C(CH.sub.3).sub.2, are suitable sensitizers for the photopolymerization of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those for obtaining the known compounds of this type.
摘要:
Aromatic-aliphatic ketones of the formulae I, II, III or IV ##STR1## wherein n is 1 or 2, Ar is an aryl radical, R.sup.1 and R.sup.2 are monovalent aliphatic, cycloaliphatic or araliphatic radicals, R.sup.3 is a direct bond or a divalent organic radical, X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH.sub.2 and Z is O, S, SO.sub.2, CH.sub.2 or C(CH.sub.3).sub.2, are suitable sensitizers for the photopolymerization of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those for obtaining the known compounds of this type.
摘要:
Aromatic-aliphatic ketones of the formulae I, II, III or IV ##STR1## wherein n is 1 or 2, Ar is an aryl radical, R.sup.1 and R.sup.2 are monvalent aliphatic, cycloaliphatic or araliphatic radicals, R.sup.3 is a direct bond or a divalent organic radical, X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH.sub.2 and Z is O, S, SO.sub.2, CH.sub.2 or C(CH.sub.3).sub.2, are suitable sensitizers for the photopolymerization of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those for obtaining the known compounds of this type.
摘要:
Mixtures of (A) a mercaptophenyl ketone of the formula I ##STR1## in which n is 1 or 2, Ar is an unsubstituted or substituted aryl radical or a hetero-aromatic radical, R.sup.1 is hydrogen, alkyl or, if n is 1, also --SCH.sub.2 X and X, if n is 1, is one of the groups --CH(R.sup.2)--OH, --CH(R.sup.2)--O--CO--R.sup.5, --CH.sub.2 SH or --(CH.sub.2).sub.1-3 --NR.sup.3 R.sup.4, in which R.sup.2 is hydrogen, methyl, phenyl or one of the groups --CH.sub.2 OH, --CH.sub.2 --NR.sup.3 R.sup.4 or --CH.sub.2 --OR.sup.6, R.sup.3 and R.sup.4 independently of one another are hydrogen, alkyl or hydroxyalkyl, or R.sup.3 and R.sup.4 together are 1,4-butylene, 1,5-pentylene or 3-oxa-1,5-pentylene, and R.sup.5 and R.sup.6 are monovalent hydrocarbon radicals, and X, if n is 2, is alkylene, vinylene, phenylene or one of the divalent groups --CH.sub.2 S--SCH.sub.2 --, --CH(R.sup.2)--O--CO--O--CH(R.sup.2)--, --CH(R.sup.2)--O--CO--R.sup.7 --CO-- OCH(R.sup.2)--, --CO--O--R.sup.8 --O--CO--, --CH.sub.2 COO--R.sup.8 --OOCCH.sub.2 -- or --CH(OH)--CH.sub.2 --O--R.sup.8 --O--CH.sub.2 --CH(OH)--, in which R.sup.7 is a divalent hydrocarbon radical or --NH--R.sup.9 --NH--and R.sup.8 and R.sup.9 are divalent hydrocarbon radicals, and (B) an organic amine are effective initiators for the photopolymerization of ethylenically unsaturated compounds or for the photochemical crosslinking of polyolefins.
摘要:
Monoketals of esters and amides of aromatic .alpha.,.beta.-dioxocarboxylic acids having the formulaR -- CO -- C(OR.sub.1)(OR.sub.2) -- COX].sub.mwherein m is 1 or 2, R is a mono- or divalent aromatic residue, R.sub.1 and R.sub.2 are monovalent organic residues and X is an alkoxy or amino groups, are photoinitiators for the UV-curing of resins. Examples for such resins are acrylates, methacrylates or unsaturated polyesters. The most important application for such photochemical curing is the field of coatings and printing inks.
摘要:
Dialkoxy-acetyl derivatives of aromatic compounds are photosensitizers for the curing of photopolymerisable systems. They can be synthesized from aromatic acetyl compounds(aryl methyl ketones) by reaction with nitrosyl chloride and the corresponding alkanol. Examples of photopolymerizable systems are coatings or printing inks on the basis of unsaturated polyesters or acrylic compounds.
摘要:
Benzophenone thioethers of the general formula I or Ia ##STR1## in which X is hydrogen, alkyl, alkoxy or --COO-alkyl and X.sub.1 is hydrogen, Cl, Br or --SR, R is an unbranched or branched alkyl radical having 1-20 C atoms, which is unsubstituted or substituted by --OH, --OR.sup.1, --O--C(O)--R.sup.2, --COOR.sup.3, --C(O)-phenyl. --CN, --SR.sup.1, --NH.sub.2, --NHR.sup.4, --NR.sup.4 R.sup.5 or phenyl, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are monovalent hydrocarbon radicals, R.sub.a is an alkylene radical having 2-10 C atoms, which is unsubstituted or substituted by --OH. --OR.sup.1 or --O--C(O)--R.sup.2 and/or is interrupted by --O--, --NR.sup.4, --O--C(O)--R.sup.6 --C(O)--O--, --C(O)--O--R.sup.7 --O--C(O)-- or phenylene and R.sup.6 and R.sup.7 are divalent hydrocarbon radicals, can be prepared by reacting a mono- or di-halogenobenzophenone of the general formula II ##STR2## in which X.sub.2 is Cl or Br and X.sub.3 is H, Cl or Br, in a polar solvent with a mercapto compound of the formula RSH or R.sub.a (SH).sub.2 in the presence of a base in an amount equivalent to the amount of halogen to be reacted.
摘要:
Compounds of the formula I ##STR1## wherein Ar.sup.1 and Ar.sup.2 represent unsubstituted or substituted phenyl, R.sup.1 represents hydrogen, alkyl, alkoxy, hydroxyalkyl, allyl, benzyl or a group --O--R.sup.2 -NR.sup.3 R.sup.4, R.sup.2 represents alkylene and --NR.sup.3 R.sup.4 is an open chain or cyclic organic amino group, are effective initiators for the photopolymerization of unsaturated compounds or for the photocrosslinking of polyolefins. They can be obtained by different methods which are in themselves known, in particular by reaction of the corresponding haloalkyl ethers or haloalkyl ketals with primary or secondary amines.
摘要翻译:式I的化合物其中Ar 1和Ar 2表示未取代或取代的苯基,R 1表示氢,烷基,烷氧基,羟基烷基,烯丙基,苄基或基团-O-R 2 -NR 3 R 4,R 2表示亚烷基和-NR 3 R 4 是开链或环状有机氨基,是不饱和化合物的光聚合或聚烯烃的光交联的有效引发剂。 它们可以通过本身已知的不同方法获得,特别是通过相应的卤代烷基醚或卤代烷基缩酮与伯胺或仲胺反应。
摘要:
Anthrone derivatives having hydroxy, ether or hydrocarbyl groups in 10-position, for example 10,10-dimethoxyanthrone, are excellent photoinitiators for the UV-curing of unsaturated systems. Preferable systems are monomeric or oligomeric acrylates and their mixtures.The systems may be used in thin layers as for instance for coatings or printing inks.